The answer is protect the body from infection by pathogens
The physical barrier is made of epithelial cells, mostly will be keratinized to increase their sturdiness further. They will impede the pathogen physically by barricading the cells, makes the pathogen could not invade deeper part of the body. Histamine and antibodies should be the role of immune cells, not epithelial.
When the codon is used for initiation, fMet is used instead of methionine, thereby forming the first amino acid as the peptide chain is synthesized.
Water pollution. It runs into creeks and pollutes the water and ruins the quality.
The nail matrix is the root of the nail from which keratinized cells grow. It <span>is the formative layer of cells at the base of the </span>fingernail or toenail. <span>This tissue consists of rapidly dividing skin cells that soon fill with the protein keratin. Hope this answers the question.</span>
The answer would be thick fur. It would provide warmth. Hope this helps!
